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Theoretical red-giant branches for globular clusters

Published online by Cambridge University Press:  04 August 2017

Don A. VandenBerg
Don A. VandenBerg*
Affiliation:
University of Victoria

Extract

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VandenBerg (1983a; hereinafter V) has recently computed a large grid of stellar evolutionary sequences from the zero-age main sequence to the base of the red-giant branch (RGB) and carried out extensive comparisons of the associated isochrones with published photometry of globular clusters (GCs). These calculations were based on the latest Los Alamos opacities and, in addition, made use of available model atmospheres for improved surface boundary conditions as well as for the transformation of the stellar models from the (Mbol, log Teff)-to the (Mv, B-V)-plane. In general, very encouraging agreement of the predicted and observed morphologies of cluster C-M diagrams was obtained.

Type
I. EVOLUTION OF LOW AND INTERMEDIATE MASS STARS OBSERVATIONS AND MODELS
Information
Symposium - International Astronomical Union , Volume 105: Observational Tests of the Stellar Evolution Theory , 1984 , pp. 143 - 146
Copyright
Copyright © Reidel 1984 

References

Frogel, J.A., Persson, S.E., and Cohen, J.G. 1981, Ap. J., 246, 842. (FPC) Google Scholar
VandenBerg, D.A. 1983a, Ap. J. Suppl., 51, 29. (V) Google Scholar
VandenBerg, D.A. 1983b, in preparation.Google Scholar